Tack-puller.



J. T. LANCASTER.

TACK FULLER.

loN FILED Patented MaJ-37.281918,

l 2 SHEETS-SHEET l.

J. T. LANCASTER.

TACK FULLER.

APPucATloN FILED Jun( n. 1911.

. 2 SHEETS-SHEET 2..

, INVENWV `Paztelltd May 28, 1918.

` y Massnonusn'rrrs.'

cripple or bend them.`

JOHN T. Laiton-swan, or iinvnnnin'n, MAssAcirusErrs, Assieneia y.ro HAMEL suon MACHINERY COIVLPNY, OF

incensi.

drawings.

My invention has for its object a` rotary tack puller ,for removing lasting tacks from boots and shoes during the `process of manufacture. Lasting tacks are drivenv only a part of their length, and project for the remainder. Rotary tack lpullers, as pre- 4 viously` constructed have tended to miss or fail to pull out some of the tacks, and to The rotary tack puller embodying my invention is much more effective in this respect and also enables the workmanto pull tacks much more rapidly. It is constructedso that .the shoe may be fed from right to left, or fromleft to right, as is more convenient for the workman.A This enables it to be used more conveniently by a lefthanded operator, and

`makes it possible to get out all the tacks, or

to pick up tacks which have been bent over.

The 4 invention will be fully under- `stood from the following description taken in connectionv with lthe accompanying 'drawings and the novel features thereof will be pointed out andclearlydened in the claims at the close of this specification.

In the drawings, Figure 1 is Va front elevation of a tack puller embodying my invention.

Fig. 2 isa side elevation shown in Fig. 1. y

Fig. 3 is a front elevation ofthe two disks,

said disks being separated slightly for convenience of illustration. y

` Fig. 4L is a side elevation ofthe right-hand ofthe tack puller Y disk shown in Fig.`j3.

Fig. 5 isaplan view ofone thetack pulling blades.4

Fig. 6 is an edge viewof one of said blades.`

Fig. 7 is a section on line 7%7 of Fig. 5.. Fig. 8 is. an elevationof amodifed form of tackpuller embodying my invention.4

Fig. 9 is a section on line 9..-9 of Fig. 8. Referring nowto the drawings, at 11 is shown "the shaft on whichthe tack puller is mounted. lnpractce, the lastingA tack Specification. of Letters Patent.

HAVERHILL, MASSACHUSETTS, A CORPORATION 0F TACK-FULLER.

Patented May 23, 191..

` Application filed July 1 1, 1917. Serial No. 179,959.

puller and a sole tack puller (not shown) are mounted at some distance from each other on the same shaft, and therefore the lasting tack puller must be of a. construction capable-of operating at the speed at which the sole tack puller operates. In practice, I find a speed of 2000 R. l. M. produces eX cellent results.

The tack puller itself comprises a pair of disks 12 and 13 secured to the shaft in convenient ,ma-nner, as by a spline 14. each of the disks 12 and 13 are formeda series of cuts which are at an angle to the side faces of the two disks 12 and 13, that is,

are diagonal to the periphery of the disks.

The cuts or slots in disk 12 are designated 15 and the slots in disk 13 are designated 16.

In practice I make the slots in disk 12 at an angle of about 8 with the left-hand face and theslots in disk 13 at the same angle with the right-hand face of the said disk, and locate the slots so that the ends of the slots register with each other as is shown in Fig. 3. The pairs of slots 15 and 16 therefore converge, or form an angle, one with the other. In the form shown in the drawings the ends of the slots emerge on the surface of the disk forming triangular cutawlay places as shown in Fig. 4.

In each of the slots is located a tack pull-4 ing blade 17. These blades, see Figs. 5 to 7, consist of fiat plates, each of which is of the thickness of the slots 15 and 16. The edge of the blade from the pointe to the point 6 is practically the arc of the circumference of a circle formed about the axis of rotation v`as the center. The part of the edge fromb Vintervals to form notches or teeth e, see Fig.

6. A'lhe'blades are of such a length asto leave "a space f between the heels c of one pair of blades, and the toes c of the adjacent pairof blades. `Thisspace aords the opporico tunity for the projectingV tack to be properly presented to the tack pulling blades, asthe 25 i i ',1J-liet.the` tack,pnllerlwillclear itself. oit' tacks shoe is moved ylaterally across the periphery of the tack puller, by the operator. The proxima-ramde@ @of .-a nail of .ooevergieg `blades .netzteuehieaehother; -o11=ilie een; trary a space-is left between them Which prevents tacks catchin the device to clear itsel 'llliie blades, ,secured in the disks `irl-.any convenient manner, as for instance by bolts 19 and nuts 20, passing tlrrongh the two dielisand, theedjaeeni. pair of blades, from SideboSide-f., j 8. and 9,11haveehovea .inodiiied fermiofmy improved', vaek Puller, Whiell diiiere.; freni. the form.. alixeafly;v described chiefly. in. reeaeet. te. the.; shape 'of die .inturned ilaegelee` the` taelepellieg. blad'ee- In theio'rm shown in the modification`,the blade/S eoiiveifge.. and meet ahahah 'no Anotches i erfteeth are. out in the' iei-urned flalge 21 ojtlie bladesI 22;.butithe .ieturiod flange'. ie .continuous 'throughoutbe. entire length, except., ab. the nointvvhere the' eIidS of, .the bladeSi oodle. together- At iliie. Point theilangei is cut away as shoivnat It' so l f'iilioligliave been extrae/ted,- aiidwliioliwoiild otheryyis'e tend fto .catch in' the Vshaped .-.Spaee formed by tbe iunotion. lef, the? .ivo ,ad r3()4 i i -Wliile der! 'erdinaryfwerk l? .prefer io femjaQenttackpnll-ing blades.

- Dloyhibeformlof blade 'Shown in Figs. 5 .to

. theblades! more. efeotve, I iidt-a beek Puller Q provided with. blades of lthe, form shownk in .tlregrnodification ispractically asVv satisfac- -ioriv oiieeneramork, 'and particularly Wliee innata relatively high rate ofereed.,

As the shoe is fedacrosstheface of the tack-puller; .the `tack entersthespace. be-

l'tvveen the. toe of one blade and the heel Aof .another .x.The shoe. restsfagainst the smooth edseeffihe 'blades and. eanoi 'be out ofi i11- fi'iired by theblades-f :The Shoe. ie fed: or

of: the 'bladebeiweea f the Point-s; f o .f and I),

pushedg .along by contact lwith the portion which portion has .nodrrturn'ed flange..- At

Silo-. The seeoeeeive'teeth 'andthe Siiooee' Ysrve'abladeeeatehfanv table. Whieb' enoi eX- traoted by its f first, contactV with the., ,device fiile lieadie.- broken away? So ihaifilie eiilreed flange on ,the tack pnllingblades onthe .side

,ofi the1 tack fp nller, at which .the/tackl enters, Y fail4` .to removeI thetack, ,the-p. the tad? iis ,caught and eXtrac ted\I bythe: bladeson the ,eppesiteyside; that, is,l assuming, lthattlne shoe 1s.-be1ngfedg from therightgi ,the

bladeeoiitbeidele12de:not lemoae Jdie. taek i it over.. tewardgthe lea. the.` bladeS iff. .1265i Olathe-dials 1.3, are almost-certain io, oaiob there, and permits and'remove it; `The 4device is easy to feed because the blow which one tack pulling blade Strikes ille taokiaiiebeeilie. Shoe. along and. oaaeeS-,ilie iieXi tack; ie enter. oeeof ibo ,of rotation.. offblie dielfeaidiblade.being Soi diagonally of the periphery ofthe disk and having a.. flange. alena .the eide. 'of the- Peripheral edge. 7

2,."1llie.i.ifiliaifovedV rotary iaekrilller een prieias. a. disk and bleek. exiiaoiieg blade, thejedge', of which yis coInc,entricl Withy the aXiS ofretaton Q'tihe disk, Said blade be ingzfset diagonally of the periphery of the disk andhay'ing anotched [iange alongthe eide ethe perii'eheraledge 3.,'I1hemproved tack pullerv comprising Notary. member. Provided with ablade a1'- ranged diagonally. of tlie lielirliefyilieieof,

and. having" an'. intureed liioielieiil' iaeee along its .effective edge.

4:- The improved. taek Puller eempi'sine arotary, cylindrical member providedl with.

a. Series obladee arranged diagoliallyfo the Perinbeiyiliereef, and... Saidsbladee having a.n indi-reed. eeiehed-x flange l along. their effeeiveedeee.

The improved tack pullercomprising. a. rotary eyliediealmember provided with vslots. diagonally of the periphery thereof,

and blades; in` Seid Siete, odell. f Said blad.es having an intnrlnedl {iange along its effectiye.e ,i,fge.

6.,.'l`lie improved tack puller comprising tvvo adjacent disks arranged to rotate onthe Same -aX-ie andLeaehrrovidedwitb aeeriee of blades arranged diagonally of. the .periphery thereof, said 'bladeshaving. ieturneid flanges alongtheir effective edges.'

`7. The improved.tackA plilller` comprising "ive adiiaeeet' diele; ai rangedy io rotaie on the saine axis and each#providedb with a xSeries,i ofy blades;` arrangedhdiagonally oi the periphery of the respective disks, and atan '.angle\to, each,other, and, said blades having inturned flanges alongltheir effective edges. `rSi. `Ell-he .improyed tack puller comprising five 'adiaoeei .diekeari'aeeed-ie rotaie ou the sameI axis, and-each provided :vvith a .series @blades-arranged in Paire, one 011 eaeli` diebdiaeeealir of ille neriplieiiee of -iliereereetive disks, .and at analogie te' .each fi @des eieaiieaieeede ef 'die-two bifida of each pair of disks being at a distance from each other to permit the passage of a tack, and said blades having inturned flanges along their effective edges.

9. The improved tack puller comprising a rotary member provided With a series of flat blades arranged diagonally of the periphery thereof, and having an edge concentric With the axis, said edge being formed into a pro- 10 jecting flange.

10. The improved tack puller comprising a rotary cylindrical member provided with a series of blades arranged diagonally of the periphery thereof and having inturned flanges along their effective edges, said flanges being formed on the side of the blade and the edge of the blade being smooth to form a suitable rest for the shoe.

In testimony whereof I aliix my signature.

JOHN T. LANCASTER.

Copies of this patent may be obtained for ve cents each, by addressing the Commissioner of Patents, Washington, E. G. 

